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WeActStudio.EpaperModule/Example/EpaperModuleTest_RaspberryPi/epaper/epaper.c
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/*---------------------------------------
- WeAct Studio Official Link
- taobao: weactstudio.taobao.com
- aliexpress: weactstudio.aliexpress.com
- github: github.com/WeActTC
- gitee: gitee.com/WeAct-TC
- blog: www.weact-tc.cn
---------------------------------------*/
#include "epaper.h"
#include "epdfont.h"
#include <wiringPi.h>
#include <wiringPiSPI.h>
// epaper module
// res pin -> Pin 11
// busy pin -> Pin 18
// d/c pin -> Pin 22
// cs pin -> Pin 24
// sck/scl pin -> Pin 23
// mosi/sda pin -> Pin 19
#define RES_PIN 17 // Pin 11
#define DC_PIN 25 // Pin 22
#define CS_PIN 8 // Pin 14
#define BUSY_PIN 24 // Pin 18
#define SPI_CHANNEL 0 // SPI Channel
uint16_t EPD_H;
uint16_t EPD_W;
EPD_PAINT EPD_Paint;
uint8_t epd_type = 0;
static uint8_t _hibernating = 1;
static uint8_t old_data[30 * 416] = {0};
static const unsigned char lut_partial[] =
{
0x0,0x40,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x80,0x80,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x40,0x40,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x80,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0A,
0x0,0x0,0x0,0x0,0x0,0x2,0x1,0x0,0x0,0x0,0x0,0x0,0x0,0x1,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x22,
0x22,0x22,0x22,0x22,0x22,0x0,0x0,0x0,
};
void epd_delay(uint16_t ms)
{
delay(ms);
}
// 修改GPIO控制函数
void epd_res_set()
{
digitalWrite(RES_PIN, HIGH);
}
void epd_res_reset()
{
digitalWrite(RES_PIN, LOW);
}
void epd_dc_set()
{
digitalWrite(DC_PIN, HIGH);
}
void epd_dc_reset()
{
digitalWrite(DC_PIN, LOW);
}
void epd_cs_set()
{
// digitalWrite(CS_PIN, HIGH);
}
void epd_cs_reset()
{
// digitalWrite(CS_PIN, LOW);
}
uint8_t epd_is_busy()
{
if (epd_type == EPD370_UC8253)
{
return digitalRead(BUSY_PIN) ? 0 : 1;
}
else
{
return digitalRead(BUSY_PIN) ? 1 : 0;
}
}
void epd_io_init(void)
{
// wiringPiSetup();
if (wiringPiSetupGpio() < 0)
{ // use BCM2835 Pin number table
printf("set wiringPi lib failed!\r\n");
return;
}
else
{
printf("set wiringPi lib success!\r\n");
}
int mode = epd_type == EPD370_UC8253 ? 0 : 3;
if (wiringPiSPISetupMode(SPI_CHANNEL, 1000000, mode) < 0)
{
printf("spi setup failed!\r\n");
return;
}
else
{
printf("spi setup success!\r\n");
}
// epd_cs_set();
epd_dc_set();
epd_res_set();
pinMode(RES_PIN, OUTPUT);
pinMode(DC_PIN, OUTPUT);
// pinMode(CS_PIN, OUTPUT);
pinMode(BUSY_PIN, INPUT);
}
void epd_io_deinit(void)
{
pinMode(RES_PIN, PM_OFF);
pinMode(DC_PIN, PM_OFF);
// pinMode(CS_PIN, PM_OFF);
pinMode(BUSY_PIN, PM_OFF);
wiringPiSPIClose(SPI_CHANNEL);
}
// 修改SPI数据传输函数
void epd_write_reg(uint8_t reg)
{
epd_dc_reset();
epd_cs_reset();
wiringPiSPIDataRW(SPI_CHANNEL, &reg, 1);
epd_cs_set();
epd_dc_set();
}
void epd_write_data(uint8_t data)
{
epd_cs_reset();
wiringPiSPIDataRW(SPI_CHANNEL, &data, 1);
epd_cs_set();
}
void _epd_write_data(uint8_t *data, uint32_t len)
{
uint8_t *dummy = malloc(len);
memcpy(dummy, data, len);
if(dummy) {
uint32_t chunk_size = 4096;
if(chunk_size == 0 || chunk_size > len) {
chunk_size = len; // 如果块大小为0或大于总长度，则一次性传输
}
uint32_t remaining = len;
uint32_t offset = 0;
while(remaining > 0) {
uint32_t current_chunk = (remaining > chunk_size) ? chunk_size : remaining;
wiringPiSPIDataRW(SPI_CHANNEL, dummy + offset, current_chunk);
offset += current_chunk;
remaining -= current_chunk;
}
free(dummy);
}
}
uint8_t epd_wait_busy()
{
uint32_t timeout = 0;
while (epd_is_busy())
{
timeout++;
if (timeout > 40000)
{
return 1;
}
epd_delay(1);
}
return 0;
}
void epd_reset(void)
{
epd_res_reset();
epd_delay(50);
epd_res_set();
epd_delay(50);
_hibernating = 0;
}
void epd_set_panel(uint8_t type, uint16_t width, uint16_t height)
{
epd_type = type;
EPD_H = height;
EPD_W = width;
printf("EPD_H: %d, EPD_W: %d, epd_type: %d\n", EPD_H, EPD_W, epd_type);
}
uint8_t epd_init(void)
{
if (_hibernating)
epd_reset();
if (epd_wait_busy())
return 1;
if (epd_type == EPD370_UC8253)
{
epd_write_reg(0x04);
if (epd_wait_busy())
return 1;
epd_write_reg(0x00);
epd_write_data(0x1F);
epd_write_data(0x0D);
epd_write_reg(0x50); // VCOM AND DATA INTERVAL SETTING
epd_write_data(0x97); // WBmode:VBDF 17|D7 VBDW 97 VBDB 57
return 0;
}
epd_write_reg(0x12); // SWRESET
epd_delay(100);
if (epd_wait_busy())
return 1;
if (epd_type == EPD213_219 || epd_type == EPD154)
{
epd_write_reg(0x01); // Driver output control
if (epd_type == EPD213_219)
{
epd_write_data(0x27);
epd_write_data(0x01);
epd_write_data(0x01);
}
else
{
epd_write_data(0xC7);
epd_write_data(0x00);
epd_write_data(0x01);
}
epd_write_reg(0x11); // data entry mode
epd_write_data(0x01);
if (epd_type == EPD154)
{
epd_write_reg(0x44); // set Ram-X address start/end position
epd_write_data(0x00);
epd_write_data(0x18);
epd_write_reg(0x45); // set Ram-Y address start/end position
epd_write_data(0xC7);
epd_write_data(0x00);
epd_write_data(0x00);
epd_write_data(0x00);
}
else
{
epd_write_reg(0x44); // set Ram-X address start/end position
epd_write_data(0x00);
epd_write_data(0x0F); // 0x0F-->(15+1)*8=128
epd_write_reg(0x45); // set Ram-Y address start/end position
epd_write_data(0x27); // 0x127-->(295+1)=296
epd_write_data(0x01);
epd_write_data(0x00);
epd_write_data(0x00);
}
epd_write_reg(0x3C); // BorderWavefrom
epd_write_data(0x05);
if (epd_type == EPD213_219)
{
epd_write_reg(0x21); // Display update control
epd_write_data(0x00);
epd_write_data(0x80);
}
}
else if (epd_type == EPD420)
{
epd_write_reg(0x21); // Display Update Controll
epd_write_data(0x40);
epd_write_data(0x00);
epd_write_reg(0x01); // Set MUX as 300
epd_write_data(0x2B);
epd_write_data(0x01);
epd_write_data(0x00);
epd_write_reg(0x3C); // BorderWavefrom
epd_write_data(0x01);
epd_write_reg(0x11); // data entry mode
epd_write_data(0x03); // X-mode
epd_address_set(0, 0, EPD_W - 1, EPD_H - 1);
}
epd_write_reg(0x18); // Read built-in temperature sensor
epd_write_data(0x80);
epd_setpos(0, 0);
if (epd_power_on())
return 1;
return 0;
}
uint8_t epd_init_fast(void)
{
if (epd_init())
return 1;
if (epd_type == EPD370_UC8253)
{
epd_write_reg(0xE0);
epd_write_data(0x02);
epd_write_reg(0xE5);
epd_write_data(0x5F); //0x5F--1.5s
}
else
{
epd_write_reg(0x22); // Load temperature value
epd_write_data(0xB1);
epd_write_reg(0x20);
if (epd_wait_busy())
return 1;
epd_write_reg(0x1A); // Write to temperature register
epd_write_data(0x6E);
epd_write_reg(0x22); // Load temperature value
epd_write_data(0x91);
epd_write_reg(0x20);
if (epd_wait_busy())
return 1;
}
return 0;
}
uint8_t epd_init_partial(void)
{
if (epd_init())
return 1;
if (epd_type == EPD213_219)
{
epd_write_reg(0x32);
epd_cs_reset();
_epd_write_data((uint8_t *)&lut_partial, sizeof(lut_partial));
epd_cs_set();
}
else if (epd_type == EPD420)
{
epd_write_reg(0x3C); // BorderWavefrom
epd_write_data(0x80);
epd_write_reg(0x21); // Display Update Controll
epd_write_data(0x00); // RED normal
epd_write_data(0x00); // single chip application
}
else if (epd_type == EPD370_UC8253)
{
epd_write_reg(0xE0);
epd_write_data(0x02);
epd_write_reg(0xE5);
epd_write_data(0x6E);
epd_write_reg(0x50);
epd_write_data(0xD7);
}
return 0;
}
void epd_enter_deepsleepmode(uint8_t mode)
{
epd_power_off();
if (epd_type == EPD370_UC8253)
{
epd_write_reg(0X07); // deep sleep
epd_write_data(0xA5);
}
else
{
epd_write_reg(0x10);
epd_write_data(mode);
}
_hibernating = 1;
}
uint8_t epd_power_on(void)
{
if (epd_type == EPD370_UC8253)
{
epd_write_reg(0x04);
return epd_wait_busy();
}
else if (epd_type == EPD420)
{
epd_write_reg(0x22); // Display Update Control
epd_write_data(0xe0);
}
else
{
epd_write_reg(0x22); // Display Update Control
epd_write_data(0xf8);
}
epd_write_reg(0x20); // Activate Display Update Sequence
return epd_wait_busy();
}
uint8_t epd_power_off(void)
{
if (epd_type == EPD370_UC8253)
{
epd_write_reg(0x02);
}
else
{
epd_write_reg(0x22); // Display Update Control
epd_write_data(0x83);
epd_write_reg(0x20); // Activate Display Update Sequence
}
return epd_wait_busy();
}
void epd_init_internalTempSensor(void)
{
if (epd_type != EPD370_UC8253)
{
epd_write_reg(0x18);
epd_write_data(0x80);
epd_write_reg(0x1A);
epd_write_data(0x7F);
// epd_write_data(0xF0);
}
}
void epd_update(void)
{
if (epd_type == EPD370_UC8253)
{
epd_write_reg(0x12);
epd_delay(1);
epd_wait_busy();
return;
}
else if (epd_type == EPD154)
{
epd_write_reg(0x22); // Display Update Control
epd_write_data(0xF4);
}
else if (epd_type == EPD420)
{
epd_write_reg(0x22); // Display Update Control
epd_write_data(0xF7);
}
else
{
epd_write_reg(0x22); // Display Update Control
epd_write_data(0xF7);
}
epd_write_reg(0x20); // Activate Display Update Sequence
epd_wait_busy();
}
void epd_update_fast(void)
{
if (epd_type == EPD370_UC8253)
{
epd_update();
return;
}
else{
epd_write_reg(0x22); // Display Update Control
epd_write_data(0xC7);
}
epd_write_reg(0x20); // Activate Display Update Sequence
epd_wait_busy();
}
void epd_update_partial(void)
{
if (epd_type == EPD370_UC8253)
{
epd_update();
return;
}
else if (epd_type == EPD154)
{
epd_write_reg(0x22); // Display Update Control
epd_write_data(0xFC);
}
else if (epd_type == EPD420)
{
epd_write_reg(0x22); // Display Update Control
epd_write_data(0xFF);
}
else
{
epd_write_reg(0x22); // Display Update Control
epd_write_data(0xCC);
}
epd_write_reg(0x20); // Activate Display Update Sequence
epd_wait_busy();
}
void epd_address_set(uint16_t x_start, uint16_t y_start, uint16_t x_end, uint16_t y_end)
{
if (epd_type == EPD370_UC8253)
{
epd_write_reg(0x90); // SET_RAM_X_ADDRESS_START_END_POSITION
epd_write_data((x_start >> 3) & 0xFF);
epd_write_data((x_end >> 3) & 0xFF);
epd_write_data(y_start & 0xFF);
epd_write_data((y_start >> 8) & 0xFF);
epd_write_data(y_end & 0xFF);
epd_write_data((y_end >> 8) & 0xFF);
epd_write_data(0x01);
}
else
{
epd_write_reg(0x44); // SET_RAM_X_ADDRESS_START_END_POSITION
epd_write_data((x_start >> 3) & 0xFF);
epd_write_data((x_end >> 3) & 0xFF);
epd_write_reg(0x45); // SET_RAM_Y_ADDRESS_START_END_POSITION
epd_write_data(y_start & 0xFF);
epd_write_data((y_start >> 8) & 0xFF);
epd_write_data(y_end & 0xFF);
epd_write_data((y_end >> 8) & 0xFF);
}
}
void epd_setpos(uint16_t x, uint16_t y)
{
uint8_t _x;
uint16_t _y = 0;
_x = x / 8;
if (epd_type == EPD154)
_y = 199 - y;
else if (epd_type == EPD213_219)
_y = 295 - y;
else if (epd_type == EPD420)
_y = y;
else if (epd_type == EPD370_UC8253)
_y = y;
if (epd_type == EPD370_UC8253)
{
epd_write_reg(0x65);
epd_write_data(_x);
epd_write_data(_y >> 8 & 0x01);
epd_write_data(_y & 0xff);
}
else
{
epd_write_reg(0x4E); // set RAM x address count to 0;
epd_write_data(_x);
epd_write_reg(0x4F); // set RAM y address count to 0x127;
epd_write_data(_y & 0xff);
epd_write_data(_y >> 8 & 0x01);
}
}
void epd_write_imagedata(uint8_t *Image1, uint32_t length)
{
epd_cs_reset();
_epd_write_data(Image1,length);
epd_cs_set();
}
void epd_write_imagedata_invert(uint8_t *Image1, uint32_t length)
{
uint8_t *dummy = malloc(length);
for (uint32_t j = 0; j < length; j++)
{
dummy[j] = ~Image1[j];
}
epd_cs_reset();
_epd_write_data(dummy, length);
epd_cs_set();
free(dummy);
}
void epd_write_imagedata2(uint8_t data, uint32_t length)
{
uint8_t *dummy = malloc(length);
memset(dummy, data, length);
epd_cs_reset();
_epd_write_data(dummy, length);
epd_cs_set();
free(dummy);
}
void epd_display(uint8_t *Image1, uint8_t *Image2)
{
if (epd_type == EPD370_UC8253)
{
return;
}
uint32_t Width, Height;
uint32_t length;
Width = EPD_H;
Height = EPD_W_BUFF_SIZE;
length = Width * Height;
epd_setpos(0, 0);
epd_write_reg(0x24);
epd_write_imagedata(Image1, length);
epd_setpos(0, 0);
epd_write_reg(0x26);
epd_write_imagedata_invert(Image2, length);
if (epd_type == EPD420)
{
epd_write_reg(0x21); // Display Update Controll
epd_write_data(0x00); // RED normal
epd_write_data(0x00); // single chip application
}
epd_update();
}
void epd_displayBW(uint8_t *Image)
{
uint32_t Width, Height;
Width = EPD_H;
Height = EPD_W_BUFF_SIZE;
uint32_t length = Width * Height;
if (epd_type == EPD370_UC8253)
{
// epd_address_set(0, 0, EPD_W - 1, EPD_H - 1);
epd_write_reg(0x10);
epd_write_imagedata(old_data, length);
epd_write_reg(0x13);
epd_write_imagedata(Image, length);
memcpy(old_data, Image, length);
epd_update();
return;
}
epd_setpos(0, 0);
epd_write_reg(0x26);
epd_write_imagedata(Image, length);
epd_setpos(0, 0);
epd_write_reg(0x24);
epd_write_imagedata(Image, length);
epd_update();
}
void epd_displayBW_fast(uint8_t *Image)
{
uint32_t Width, Height;
Width = EPD_H;
Height = EPD_W_BUFF_SIZE;
uint32_t length = Width * Height;
if (epd_type == EPD370_UC8253)
{
// epd_address_set(0, 0, EPD_W - 1, EPD_H - 1);
epd_write_reg(0x10);
epd_write_imagedata(old_data, length);
epd_write_reg(0x13);
epd_write_imagedata(Image, length);
memcpy(old_data, Image, length);
epd_update();
return;
}
epd_setpos(0, 0);
epd_write_reg(0x26);
epd_write_imagedata(Image, length);
epd_setpos(0, 0);
epd_write_reg(0x24);
epd_write_imagedata(Image, length);
epd_update_fast();
}
void epd_displayBW_partial(uint8_t *Image)
{
if (epd_type == EPD370_UC8253)
{
epd_displayBW(Image);
return;
}
uint32_t Width, Height;
Width = EPD_H;
Height = EPD_W_BUFF_SIZE;
epd_setpos(0, 0);
epd_write_reg(0x24);
epd_write_imagedata(Image, Width * Height);
epd_update_partial();
epd_setpos(0, 0);
epd_write_reg(0x26);
epd_write_imagedata(Image, Width * Height);
}
void epd_displayRED(uint8_t *Image)
{
uint32_t Width, Height;
Width = EPD_H;
Height = EPD_W_BUFF_SIZE;
epd_setpos(0, 0);
epd_write_reg(0x26);
epd_write_imagedata(Image, Width * Height);
if (epd_type == EPD420)
{
epd_write_reg(0x21); // Display Update Controll
epd_write_data(0x00); // RED normal
epd_write_data(0x00); // single chip application
}
epd_update();
}
void epd_displayRED_invert(uint8_t *Image)
{
uint32_t Width, Height;
Width = EPD_H;
Height = EPD_W_BUFF_SIZE;
epd_setpos(0, 0);
epd_write_reg(0x26);
epd_write_imagedata_invert(Image, Width * Height);
if (epd_type == EPD420)
{
epd_write_reg(0x21); // Display Update Controll
epd_write_data(0x00); // RED normal
epd_write_data(0x00); // single chip application
}
epd_update();
}
void epd_paint_newimage(uint8_t *image, uint16_t Width, uint16_t Height, uint16_t Rotate, uint16_t Color)
{
EPD_Paint.Image = 0x00;
EPD_Paint.Image = image;
EPD_Paint.WidthMemory = Width;
EPD_Paint.HeightMemory = Height;
EPD_Paint.Color = Color;
EPD_Paint.WidthByte = (Width % 8 == 0) ? (Width / 8) : (Width / 8 + 1);
EPD_Paint.HeightByte = Height;
EPD_Paint.Rotate = Rotate;
if (Rotate == EPD_ROTATE_0 || Rotate == EPD_ROTATE_180)
{
EPD_Paint.Width = Height;
EPD_Paint.Height = Width;
}
else
{
EPD_Paint.Width = Width;
EPD_Paint.Height = Height;
}
}
void epd_paint_setpixel(uint16_t Xpoint, uint16_t Ypoint, uint16_t Color)
{
uint16_t X, Y;
uint32_t Addr;
uint8_t Rdata;
switch (EPD_Paint.Rotate)
{
case 0:
X = EPD_Paint.WidthMemory - Ypoint - 1;
Y = Xpoint;
break;
case 90:
X = EPD_Paint.WidthMemory - Xpoint - 1;
Y = EPD_Paint.HeightMemory - Ypoint - 1;
break;
case 180:
X = Ypoint;
Y = EPD_Paint.HeightMemory - Xpoint - 1;
break;
case 270:
X = Xpoint;
Y = Ypoint;
break;
default:
return;
}
Addr = X / 8 + Y * EPD_Paint.WidthByte;
Rdata = EPD_Paint.Image[Addr];
if (Color == EPD_COLOR_BLACK)
{
EPD_Paint.Image[Addr] = Rdata & ~(0x80 >> (X % 8));
}
else
EPD_Paint.Image[Addr] = Rdata | (0x80 >> (X % 8));
}
void epd_paint_clear(uint16_t color)
{
uint16_t X, Y;
uint32_t Addr;
for (Y = 0; Y < EPD_Paint.HeightByte; Y++)
{
for (X = 0; X < EPD_Paint.WidthByte; X++)
{ // 8 pixel = 1 byte
Addr = X + Y * EPD_Paint.WidthByte;
EPD_Paint.Image[Addr] = color;
}
}
}
void epd_paint_selectimage(uint8_t *image)
{
EPD_Paint.Image = image;
}
void epd_paint_drawPoint(uint16_t Xpoint, uint16_t Ypoint, uint16_t Color)
{
epd_paint_setpixel(Xpoint - 1, Ypoint - 1, Color);
}
void epd_paint_drawLine(uint16_t Xstart, uint16_t Ystart, uint16_t Xend, uint16_t Yend, uint16_t Color)
{
uint16_t Xpoint, Ypoint;
int32_t dx, dy;
int32_t XAddway, YAddway;
int32_t Esp;
char Dotted_Len;
Xpoint = Xstart;
Ypoint = Ystart;
dx = (int)Xend - (int)Xstart >= 0 ? Xend - Xstart : Xstart - Xend;
dy = (int)Yend - (int)Ystart <= 0 ? Yend - Ystart : Ystart - Yend;
XAddway = Xstart < Xend ? 1 : -1;
YAddway = Ystart < Yend ? 1 : -1;
Esp = dx + dy;
Dotted_Len = 0;
for (;;)
{
Dotted_Len++;
epd_paint_drawPoint(Xpoint, Ypoint, Color);
if (2 * Esp >= dy)
{
if (Xpoint == Xend)
break;
Esp += dy;
Xpoint += XAddway;
}
if (2 * Esp <= dx)
{
if (Ypoint == Yend)
break;
Esp += dx;
Ypoint += YAddway;
}
}
}
void epd_paint_drawRectangle(uint16_t Xstart, uint16_t Ystart, uint16_t Xend, uint16_t Yend, uint16_t Color, uint8_t mode)
{
uint16_t i;
if (mode)
{
for (i = Ystart; i < Yend; i++)
{
epd_paint_drawLine(Xstart, i, Xend, i, Color);
}
}
else
{
epd_paint_drawLine(Xstart, Ystart, Xend, Ystart, Color);
epd_paint_drawLine(Xstart, Ystart, Xstart, Yend, Color);
epd_paint_drawLine(Xend, Yend, Xend, Ystart, Color);
epd_paint_drawLine(Xend, Yend, Xstart, Yend, Color);
}
}
void epd_paint_drawCircle(uint16_t X_Center, uint16_t Y_Center, uint16_t Radius, uint16_t Color, uint8_t mode)
{
int16_t f = 1 - Radius;
int16_t ddF_x = 1;
int16_t ddF_y = -2 * Radius;
int16_t x = 0;
int16_t y = Radius;
if (mode)
{
// 实心圆 - 绘制填充线
epd_paint_drawLine(X_Center - Radius, Y_Center, X_Center + Radius, Y_Center, Color);
}
else
{
// 空心圆 - 绘制8个对称点
epd_paint_drawPoint(X_Center, Y_Center + Radius, Color);
epd_paint_drawPoint(X_Center, Y_Center - Radius, Color);
epd_paint_drawPoint(X_Center + Radius, Y_Center, Color);
epd_paint_drawPoint(X_Center - Radius, Y_Center, Color);
}
while (x < y)
{
if (f >= 0)
{
y--;
ddF_y += 2;
f += ddF_y;
}
x++;
ddF_x += 2;
f += ddF_x;
if (mode)
{
// 实心圆 - 绘制填充线
epd_paint_drawLine(X_Center - x, Y_Center + y, X_Center + x, Y_Center + y, Color);
epd_paint_drawLine(X_Center - x, Y_Center - y, X_Center + x, Y_Center - y, Color);
epd_paint_drawLine(X_Center - y, Y_Center + x, X_Center + y, Y_Center + x, Color);
epd_paint_drawLine(X_Center - y, Y_Center - x, X_Center + y, Y_Center - x, Color);
}
else
{
// 空心圆 - 绘制8个对称点
epd_paint_drawPoint(X_Center + x, Y_Center + y, Color);
epd_paint_drawPoint(X_Center - x, Y_Center + y, Color);
epd_paint_drawPoint(X_Center + x, Y_Center - y, Color);
epd_paint_drawPoint(X_Center - x, Y_Center - y, Color);
epd_paint_drawPoint(X_Center + y, Y_Center + x, Color);
epd_paint_drawPoint(X_Center - y, Y_Center + x, Color);
epd_paint_drawPoint(X_Center + y, Y_Center - x, Color);
epd_paint_drawPoint(X_Center - y, Y_Center - x, Color);
}
}
}
void epd_paint_showChar(uint16_t x, uint16_t y, uint16_t chr, uint16_t size1, uint16_t color)
{
uint16_t i, m, temp, size2, chr1;
uint16_t x0, y0;
x += 1, y += 1, x0 = x, y0 = y;
if (x >= EPD_H || y >= EPD_W)
return;
if (x + size1 > EPD_H || y + 8 > EPD_W)
return;
if (size1 == 8)
size2 = 6;
else
size2 = (size1 / 8 + ((size1 % 8) ? 1 : 0)) * (size1 / 2);
chr1 = chr - ' ';
for (i = 0; i < size2; i++)
{
if (size1 == 8)
{
temp = asc2_0806[chr1][i];
}
else if (size1 == 12)
{
temp = asc2_1206[chr1][i];
}
else if (size1 == 16)
{
temp = asc2_1608[chr1][i];
}
else if (size1 == 24)
{
temp = asc2_2412[chr1][i];
}
else
return;
for (m = 0; m < 8; m++)
{
if (y + m >= EPD_W)
break;
if (temp & 0x01)
epd_paint_drawPoint(x, y + m, color);
else
epd_paint_drawPoint(x, y + m, !color);
temp >>= 1;
}
x++;
if ((size1 != 8) && ((x - x0) == size1 / 2))
{
x = x0;
y0 = y0 + 8;
}
y = y0;
}
}
void epd_paint_showString(uint16_t x, uint16_t y, uint8_t *chr, uint16_t size1, uint16_t color)
{
while (*chr != '\0')
{
epd_paint_showChar(x, y, *chr, size1, color);
chr++;
if (size1 == 8)
{
x += 6;
if (x > EPD_H - 6)
break;
}
else
{
x += size1 / 2;
if (x > EPD_H - size1 / 2)
break;
}
}
}
// m^n
static uint32_t _Pow(uint16_t m, uint16_t n)
{
uint32_t result = 1;
while (n--)
{
result *= m;
}
return result;
}
void epd_paint_showNum(uint16_t x, uint16_t y, uint32_t num, uint16_t len, uint16_t size1, uint16_t color)
{
uint8_t t, temp, m = 0;
if (size1 == 8)
m = 2;
for (t = 0; t < len; t++)
{
temp = (num / _Pow(10, len - t - 1)) % 10;
if (temp == 0)
{
epd_paint_showChar(x + (size1 / 2 + m) * t, y, '0', size1, color);
}
else
{
epd_paint_showChar(x + (size1 / 2 + m) * t, y, temp + '0', size1, color);
}
}
}
void epd_paint_showChinese(uint16_t x, uint16_t y, uint16_t num, uint16_t size1, uint16_t color)
{
uint16_t m, temp;
uint16_t x0, y0;
uint16_t i, size3 = (size1 / 8 + ((size1 % 8) ? 1 : 0)) * size1;
x += 1, y += 1, x0 = x, y0 = y;
for (i = 0; i < size3; i++)
{
if (size1 == 16)
{
temp = Hzk1[num][i];
} // 16*16
else if (size1 == 24)
{
temp = Hzk2[num][i];
} // 24*24
else if (size1 == 32)
{
temp = Hzk3[num][i];
} // 32*32
else if (size1 == 64)
{
temp = Hzk4[num][i];
} // 64*64
else
return;
for (m = 0; m < 8; m++)
{
if (temp & 0x01)
epd_paint_drawPoint(x, y, color);
else
epd_paint_drawPoint(x, y, !color);
temp >>= 1;
y++;
}
x++;
if ((x - x0) == size1)
{
x = x0;
y0 = y0 + 8;
}
y = y0;
}
}
void epd_paint_showPicture(uint16_t x, uint16_t y, uint16_t sizex, uint16_t sizey, const uint8_t BMP[], uint16_t Color)
{
uint16_t j = 0;
uint16_t i, n = 0, temp = 0, m = 0;
uint16_t x0 = 0, y0 = 0;
x += 1, y += 1, x0 = x, y0 = y;
sizey = sizey / 8 + ((sizey % 8) ? 1 : 0);
for (n = 0; n < sizey; n++)
{
for (i = 0; i < sizex; i++)
{
temp = BMP[j];
j++;
for (m = 0; m < 8; m++)
{
if (temp & 0x01)
epd_paint_drawPoint(x, y, !Color);
else
epd_paint_drawPoint(x, y, Color);
temp >>= 1;
y++;
}
x++;
if ((x - x0) == sizex)
{
x = x0;
y0 = y0 + 8;
}
y = y0;
}
}
}
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